Azimuthal asymmetry of coherent Cherenkov radiation from a tilted bunch

Результат исследований: Материалы для журналаСтатья

Выдержка

Modern accelerator technologies may provide electron beams consisting of ultrashort bunches with transverse sizes, which are much larger than longitudinal sizes. The spectral-angular characteristics of coherent Cherenkov radiation (CChR) produced by such bunches have thus been considered. We simulated the characteristics of CChR and those from a single charge on the basis of the polarization current model, which allowed us to consider finite sizes for the Cherenkov radiator. We calculated the angular distribution of the CChR from a bunch tilted by angle ψ with respect to the velocity direction, with the assumption of a 3-D Gaussian charge distribution in the bunch. Contrary to the azimuthally symmetrical distribution of conventional ChR, a strong azimuthal asymmetry was observed in the CChR from the tilted bunch. The maximal yield of the CChR may be achieved if the tilt angle ψ coincides with the Cherenkov angle Θ ch =arccos⁡(1/nβ), βc is the charge velocity and n is the refraction index.

Язык оригиналаАнглийский
Страницы (с-по)888-893
Число страниц6
ЖурналPhysics Letters, Section A: General, Atomic and Solid State Physics
Том383
Номер выпуска9
DOI
СостояниеОпубликовано - 28 фев 2019

Отпечаток

coherent radiation
asymmetry
radiators
charge distribution
refraction
accelerators
angular distribution
electron beams
polarization

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Цитировать

Azimuthal asymmetry of coherent Cherenkov radiation from a tilted bunch. / Gogolev, S. Yu; Potylitsyn, A. P.

В: Physics Letters, Section A: General, Atomic and Solid State Physics, Том 383, № 9, 28.02.2019, стр. 888-893.

Результат исследований: Материалы для журналаСтатья

@article{3dfa1f984a004bb3859c77db42d8d3b5,
title = "Azimuthal asymmetry of coherent Cherenkov radiation from a tilted bunch",
abstract = "Modern accelerator technologies may provide electron beams consisting of ultrashort bunches with transverse sizes, which are much larger than longitudinal sizes. The spectral-angular characteristics of coherent Cherenkov radiation (CChR) produced by such bunches have thus been considered. We simulated the characteristics of CChR and those from a single charge on the basis of the polarization current model, which allowed us to consider finite sizes for the Cherenkov radiator. We calculated the angular distribution of the CChR from a bunch tilted by angle ψ with respect to the velocity direction, with the assumption of a 3-D Gaussian charge distribution in the bunch. Contrary to the azimuthally symmetrical distribution of conventional ChR, a strong azimuthal asymmetry was observed in the CChR from the tilted bunch. The maximal yield of the CChR may be achieved if the tilt angle ψ coincides with the Cherenkov angle Θ ch =arccos⁡(1/nβ), βc is the charge velocity and n is the refraction index.",
keywords = "Azimuthal asymmetry, Cherenkov radiation, Coherent radiation, Terahertz radiation, Tilted bunch, Transition radiation",
author = "Gogolev, {S. Yu} and Potylitsyn, {A. P.}",
year = "2019",
month = "2",
day = "28",
doi = "10.1016/j.physleta.2018.12.004",
language = "English",
volume = "383",
pages = "888--893",
journal = "Physics Letters, Section A: General, Atomic and Solid State Physics",
issn = "0375-9601",
publisher = "Elsevier",
number = "9",

}

TY - JOUR

T1 - Azimuthal asymmetry of coherent Cherenkov radiation from a tilted bunch

AU - Gogolev, S. Yu

AU - Potylitsyn, A. P.

PY - 2019/2/28

Y1 - 2019/2/28

N2 - Modern accelerator technologies may provide electron beams consisting of ultrashort bunches with transverse sizes, which are much larger than longitudinal sizes. The spectral-angular characteristics of coherent Cherenkov radiation (CChR) produced by such bunches have thus been considered. We simulated the characteristics of CChR and those from a single charge on the basis of the polarization current model, which allowed us to consider finite sizes for the Cherenkov radiator. We calculated the angular distribution of the CChR from a bunch tilted by angle ψ with respect to the velocity direction, with the assumption of a 3-D Gaussian charge distribution in the bunch. Contrary to the azimuthally symmetrical distribution of conventional ChR, a strong azimuthal asymmetry was observed in the CChR from the tilted bunch. The maximal yield of the CChR may be achieved if the tilt angle ψ coincides with the Cherenkov angle Θ ch =arccos⁡(1/nβ), βc is the charge velocity and n is the refraction index.

AB - Modern accelerator technologies may provide electron beams consisting of ultrashort bunches with transverse sizes, which are much larger than longitudinal sizes. The spectral-angular characteristics of coherent Cherenkov radiation (CChR) produced by such bunches have thus been considered. We simulated the characteristics of CChR and those from a single charge on the basis of the polarization current model, which allowed us to consider finite sizes for the Cherenkov radiator. We calculated the angular distribution of the CChR from a bunch tilted by angle ψ with respect to the velocity direction, with the assumption of a 3-D Gaussian charge distribution in the bunch. Contrary to the azimuthally symmetrical distribution of conventional ChR, a strong azimuthal asymmetry was observed in the CChR from the tilted bunch. The maximal yield of the CChR may be achieved if the tilt angle ψ coincides with the Cherenkov angle Θ ch =arccos⁡(1/nβ), βc is the charge velocity and n is the refraction index.

KW - Azimuthal asymmetry

KW - Cherenkov radiation

KW - Coherent radiation

KW - Terahertz radiation

KW - Tilted bunch

KW - Transition radiation

UR - http://www.scopus.com/inward/record.url?scp=85058230009&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85058230009&partnerID=8YFLogxK

U2 - 10.1016/j.physleta.2018.12.004

DO - 10.1016/j.physleta.2018.12.004

M3 - Article

VL - 383

SP - 888

EP - 893

JO - Physics Letters, Section A: General, Atomic and Solid State Physics

JF - Physics Letters, Section A: General, Atomic and Solid State Physics

SN - 0375-9601

IS - 9

ER -